Program Staff

Madelyn Creedon
Director and Chair
Madelyn Creedon is director and chair of the Nuclear Security Working Group and a research professor of international affairs at the George Washington University Elliott School of International Affairs.
Find Out More
Brian Radzinsky
Deputy Director
Brian Radzinsky is deputy director of the Nuclear Security Working Group and a Phd Candidate-in-Residence at the Institute for Security and Conflict Studies.
Find Out MoreHannah Lloyd-Barker
Program Manager
Hannah Lloyd-Barker works as a program manager for the Nuclear Security Working Group. She has worked for the Department of Energy/National Nuclear Security Administration, the Department of Defense, the Senate Armed Services Committee, and the House of Representatives. She is a graduate of Georgetown University with a Master’s Degree in Security Studies, specializing in International Nuclear Security.
Find Out More
Hannah Mezei
Research Assistant
Hannah Mezei works as a research assistant for the Nuclear Security Working Group. She is a second-year Master’s candidate in the Asian Studies program at the George Washington University Elliott School of International Affairs with a thematic concentration on China and a professional concentration on security issues within the Asia-Pacific.
Find Out More